There's Something Wrong with My Sword

Gu Lin, with mediocre qualifications, could barely reach the threshold of the outer gate of Qingyun Sect. While others were practicing hard skills, he always spent most of his time cleaning the iron sword that was passed down from his family. A fellow student was puzzled: "Can a piece of ordinary iron still produce flowers?" Until the outer sect competition, the opponent sacrificed a yellow-grade high-grade magic sword, and the sword energy was like a rainbow. Everyone thought that Gu Lin would definitely be defeated. The iron sword suddenly trembled slightly and let out an almost inaudible groan—— The opponent flew out of the ring with his sword in hand. Lin Xuan looked down at the sword in his hand and said with a bitter smile: "You practice too quickly."